US407478A - Packing-disk for hydraulic presses - Google Patents
Packing-disk for hydraulic presses Download PDFInfo
- Publication number
- US407478A US407478A US407478DA US407478A US 407478 A US407478 A US 407478A US 407478D A US407478D A US 407478DA US 407478 A US407478 A US 407478A
- Authority
- US
- United States
- Prior art keywords
- packing
- disk
- piston
- rubber
- hydraulic presses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 239000004636 vulcanized rubber Substances 0.000 description 8
- 241000209456 Plumbago Species 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001050 lubricating Effects 0.000 description 4
- 240000000800 Allium ursinum Species 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
- F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
Definitions
- This invention relates to certain improvements in pistonpacking especially designed for hydraulic rams, having for its object more particularly to produce a perfect watertight joint, while it combines therewith durability and lubricating qualities; and, to these ends the nature of my invention consists of the. detailed construction of the packing, as will appear from the following description and accompanying illustrations, in Which Figure 1 is a broken-away sectional elevation of a hydraulic ram or press cylinder and its piston embodying my improved packing or piston.
- Fig. 2 is an enlarged perspective view of my packing or piston
- Fig. 3 is a broken-away sectional view thereof.
- the packing or rubber portion is molded upon the steel disk or plate so that the upper surface of the disk will be flush with the upper surface of an annulus or ring-like extension b of the rubber or packing; but the entire lower surface will be wholly rubber; also, in the plate or disk of steel A are apertures a, arranged, it may be, near the margin, and having, preferably, the contour shown, the bottom being contracted, and the upper remaining portions being flared or extended laterally and upward, thus causing the vulcanized rubber during the molding of the piston or packing to spread at these points as it hardens to serve as an additional means of fastening.
- the rubber portion forms a marginal portion or packing proper b to produce a perfect water-tightfitting joint between the same and the walls of the cylinder.
- the rubber portion of the piston is combined in the process of vulcanization with plumbago.
- the steel plate strengthens the piston as well as furnishes it with a suitable wearing-surface whereit has contact with the iron ram.
- 0 is the ram or piston-cylinder, and D the ram, both of ordinary construction.
- the piston consisting of the circular vulcanized-rublier part or member having the lower continuous rubber surface and an upper annulus or ring-like surface and the steel wearing plate or disk having its upper surface flush with the upper surface of the said annulus or ring-like rubber portion, substantially as specified.
- the herein-described piston consisting of a steel plate provided with a series of upwardly-flared apertures, said plate forming the upper surface of the piston, and a body of rubber which forms the under surface molded upon said metallic disk with portions thereof located in such flared apertures, substantially as described.
- the herein-described piston consisting of the central steel disk or plate having a series of flared apertures and the main body having portions located in said flared apertures, and a marginal portion surrounding said disk or plate and made of combined vulcanized rubber and plumbago, substantially as specified.
Description
(No Model.)
E. H. GARGIN.
PACKING DISK FOR HYDRAULIC PRESSES.
IHIIHI Patented July 23, 1889.
UNITED STATES PATENT OFFICE.
EDWARD I-I. GAROIN, OF RICHMOND, VIRGINIA.
PACKING-DISK FOR HYDRAULIC PRESSES.
SPECIFICATION forming part of Letters Patent No. 407,478, dated July 23, 1889.
Application filed May 3,1889. Serial No.309,493. (N0 model.)
.To all whom, it may concern.-
Be it known that I, EDWARD H. GAROIN, of Richmond, Henrico county, Virginia, have invented certain new and useful Improvements in Packing-Disksforllydraulic Presses, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a parthereof.
This invention relates to certain improvements in pistonpacking especially designed for hydraulic rams, having for its object more particularly to produce a perfect watertight joint, while it combines therewith durability and lubricating qualities; and, to these ends the nature of my invention consists of the. detailed construction of the packing, as will appear from the following description and accompanying illustrations, in Which Figure 1 is a broken-away sectional elevation of a hydraulic ram or press cylinder and its piston embodying my improved packing or piston. Fig. 2 is an enlarged perspective view of my packing or piston, and Fig. 3 is a broken-away sectional view thereof.
In theembodiment of my invention I make the piston of two general partsthe preferably steel disk A and the vulcanized-rubber portion or packing B. The packing or rubber portion is molded upon the steel disk or plate so that the upper surface of the disk will be flush with the upper surface of an annulus or ring-like extension b of the rubber or packing; but the entire lower surface will be wholly rubber; also, in the plate or disk of steel A are apertures a, arranged, it may be, near the margin, and having, preferably, the contour shown, the bottom being contracted, and the upper remaining portions being flared or extended laterally and upward, thus causing the vulcanized rubber during the molding of the piston or packing to spread at these points as it hardens to serve as an additional means of fastening. The rubber portion, as will have been observed, forms a marginal portion or packing proper b to produce a perfect water-tightfitting joint between the same and the walls of the cylinder.
In order to possess the piston of lubricating qualities, to allow it to readily return after the effective stroke to its first posit-ion,
the rubber portion of the piston is combined in the process of vulcanization with plumbago. The steel plate strengthens the piston as well as furnishes it with a suitable wearing-surface whereit has contact with the iron ram.
0 is the ram or piston-cylinder, and D the ram, both of ordinary construction.
I am aware that, broadly,avulcanized-rubber piston or packing is not new, and that such a packing or piston made in annular form is not new; but I am not aware that a vulcanized rubber piston or packing provided with an upper steel wearing surface or disk upon which the rubber portion is molded, so as to form an unbroken under surface of rubber, has ever been produced, as and for the purposes hereinbefore set forth by me.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. The piston consisting of the circular vulcanized-rublier part or member having the lower continuous rubber surface and an upper annulus or ring-like surface and the steel wearing plate or disk having its upper surface flush with the upper surface of the said annulus or ring-like rubber portion, substantially as specified.
2. The herein-described piston, consisting of a steel plate provided with a series of upwardly-flared apertures, said plate forming the upper surface of the piston, and a body of rubber which forms the under surface molded upon said metallic disk with portions thereof located in such flared apertures, substantially as described.
3. The herein-described piston, consisting of the central steel disk or plate having a series of flared apertures and the main body having portions located in said flared apertures, and a marginal portion surrounding said disk or plate and made of combined vulcanized rubber and plumbago, substantially as specified.
In testimony whereof I affix my signature in presence of two witnesses.
EDWARD H. GAROIN.
\Vitnesses:
JOHN S. HARWOOD, WM. F. HARWOOD.
Publications (1)
Publication Number | Publication Date |
---|---|
US407478A true US407478A (en) | 1889-07-23 |
Family
ID=2476420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US407478D Expired - Lifetime US407478A (en) | Packing-disk for hydraulic presses |
Country Status (1)
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US (1) | US407478A (en) |
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- US US407478D patent/US407478A/en not_active Expired - Lifetime
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